JPWO2022070999A5 - - Google Patents

Claims (15)

Detecting the content of particles having a first feature value as a specific feature value contained in the identification tag, and determining the type of the identification tag using the information on the content of the particles having the first feature value. An identification tag reading method characterized by: Further detecting the presence or absence of a component having a second feature quantity as a specific feature quantity contained in the identification tag, and further using the information on the presence or absence of the component having the second feature quantity to determine the type of the identification tag. 2. The identification tag reading method according to claim 1. 3. The identification tag reading method according to claim 2, wherein the component having the second feature amount is a component not having the first feature amount. 4. The identification tag reading method according to claim 2 or 3, wherein the component having the second characteristic quantity is particles having the second characteristic quantity. Further detecting the content of the component having the second feature when the component having the second feature is present, and further using the content information of the component having the second feature. 5. The identification tag reading method according to any one of claims 2 to 4, wherein the type of identification tag is discriminated by using the identification tag. The identification tag reading method according to any one of claims 1 to 5, wherein the content of particles having the first feature amount is detected from the image of the identification tag. 7. The identification tag reading method according to claim 6, wherein the content of the particles having the first characteristic amount is detected by counting the number of particles having the first characteristic amount contained in the image. Detecting the content of the particles having the first feature amount using the number of pixels included in the image and the number of pixels resulting from the particles having the first feature amount and the number of pixels due to the background of the image. Item 7. Identification tag reading method according to item 6. 9. The identification tag according to any one of claims 1 to 8, wherein an analysis device that analyzes the physicochemical properties of components contained in the identification tag is used, and the information on the physicochemical properties is further used to determine the type of the identification tag. identification tag reading method. 10. The identification tag reading method according to any one of claims 1 to 9, wherein the identification tag is obtained by applying ink containing particles having the first characteristic amount to the article. The identification tag reading method according to any one of claims 1 to 9, wherein the identification tag is formed by attaching an attached material to which particles having the first feature amount are attached to an article. The identification tag reading method according to any one of claims 1 to 11, wherein the particles having the first feature amount contained in the identification tag are particles having an average particle diameter of 0.2 µm or more and 100 µm or less. 13. The identification tag reading method according to any one of claims 1 to 12, wherein three or more types of identification tags are discriminated using information on the content of particles having the first feature amount. A composition containing particles having a first feature amount as a specific feature amount is applied to an article so that the content of the particles contained in the identification tag corresponds to the type of the identification tag, and identification A method for manufacturing an article with an identification tag, comprising manufacturing an article to which a tag is attached. 15. The method of manufacturing an article with an identification tag according to claim 14 , wherein the composition is an ink in which particles having the first feature amount are dispersed at a predetermined concentration, and the ink is applied to the article.